沈阳工业大学学报2012，Vol.34Issue(3)：241-246,6.
基于H∞最优控制的PMLSM伺服系统鲁棒重复控制
Robust repetitive control for permanent-magnet linear synchronous motor servo system based on H∞ optimal control
摘要
Abstract
In the tracking process of periodic input for permanent-magnet linear synchronous motor （PMLSM）, the parameter variation, load disturbance and frictional force would decreace the servo performance of the system. Therefore, a robust displacement repetitive controller based on H∞ optimal theory was designed. The delay linkage in the repetitive controller was considered as a stable perturbation △1 （ s）, and the uncertain factors included in the controlled object were taken as another perturbation △2 （s）. Thus, the servo system could be regarded as an uncertain system containing two perturbations, and then the robust repetitive control problem could be converted into the H∞ optimal control problem. Both feedback controller and repetitive controller were simultaneously designed with H∞ optimal theory. The theoretical derivation and simulation results show that the proposed scheme can improve the tracking accuracy and robustness of the system effectively.关键词
永磁直线同步电动机/直接驱动/周期性输入/参数变化/重复控制/鲁棒性能/H∞最优控制/伪微分反馈前馈控制Key words
PMLSM/direct driving/periodic input/parameter variation/repetitive control/robustness/H∞ optimal control/pseudo derivative feedback with feedforward control分类
信息技术与安全科学引用本文复制引用
孙宜标,王欢,杨俊友..基于H∞最优控制的PMLSM伺服系统鲁棒重复控制[J].沈阳工业大学学报,2012,34(3):241-246,6.基金项目
国家自然科学基金资助项目 （）
